Well-drilling machine



(No Model.) 5 J. BUTTON.

WELL DRILLING MACHINE. No. 542,725. Patented July 16, 1895.

1N VEN TOR .754 ATTORNEY m WITNESSES:

NITED' ST TES PATENT I OFFICE.

JESSE BUTTON, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO GEORGE D.LOOMIS, E TIFFIN, OHIO.

WELL-DRILLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 542,725, dated July 16,1895.

Application filed April 26, 1894. Serial No. 608,976. (No model.)

.To aZZ whom it may concern.-

Be it known that I, JESSE BUTTON, a citizen of the United States ofAmerica, residing at Springfield, in the county of Hampden and State ofMassachusetts, have invented a new and useful Improvement inWell-Drillin g Machines, of which the following is a specification. i

One great objection to the portable welldrilling machines heretoforeused is the frequency with which it is necessary to attach and releasethe gripping devices and raise the screw. v

The objects of my invention are to provide a well-drilling machine inwhich, without increasing the height of the machine, the distancedrilled at each clamping may be greatly increased, and to improve theconstruction of the machine; and the invention consists in the parts andcombination and arrangement of parts hereinafter described and claimed.

My invention is more especially'adapted for use in connection withportable well-drilling machines, such as are described in Letters PatentNo. 506,204., granted me October 10,

In the drawings, Figure 1 is an elevation of a walking-beam providedwith my improvement; Fig. 2, a reduced elevation showing thewalking-beam thrown up so as to lift the a segmental end b. 0n thewalking-beam above the segmental end are hooks b,to which are fastenedlift chains or cables D connected 5 with the supporting-frame E of thescrew in'such manner as to throw the center of the frame out of linewith the end of the walking-beam, thus allowing a screw mounted in theframe E to pass above the end of the walking-beam. The screw 6 ismounted in the frame E, which has at its top a collar 6 provided withlugs e with which the chains D are connected. The lower end of the frameE carries a split-nut e provided with the usual clamping mechanism. Whenthe screw 5 5 hasbeen run down to its limit the clamp on the split-nutis released and the screwv can be raised by means of a cord F- passingover suit-, able guide-pulleys fand run down to within easy reach of theoperator. the screw is provided with the usual clamping mechanism 6 toengage the drill-rope G.

In the form shown the chains D are of a diameter such as to hold thescrew clear of the path of the walking-beam. On the tapering 6 5' end ofthe walking-beam a counterweight is secured by means of abolt 12 passingthrough the weight and that end of the walking-beam and a nut b Thismethod of attachment permits the ba1ance-weight to be drawn onto thetapering end of the walking-beam to take up any space caused by theshrinkage of the timbers. To this weight is pivotally fastened a pitman,which is connected with suitable driving mechanism. The counterweight issufficient to slightly overbalance the weight of the temper-screw whenthe grip on the drillrope is released.

In Fig. 2 I have shown the walking-beam thrown back so as to lift thetemper-screw out of engagement with the drill-rope and allow the tool tobe raised. The walking-beam being balanced the screw can be handled withgreat ease.

I claim as my invention 1. In a welldrilling machine the combination ofa walking beam, B, a screw, 6, a frame, E, adapted to support the screwand open to permit it to play through both ends, and chains, D, tosupport the frame, E, and hold 0 the screw in a plane outside of the arcof travel of the walking beam, substantially as described.

2. In a well drilling machine, the combination of a walking beam; ascrew; a frame sus- 5 pended from the walking beam and open at its upperend to permit the screw to play therethrough; a split nut thereonadapted to engage or disengage with the screw, and a cord attached tothe screw and carried over a sheave [00 or sheaves to a position withinreach of the operator whereby the temper screw may be The lower end of60 V raised, substantially as and for the purpose set forth.

3. In a well drilling machine the combination of awalking beam, B;ascrew, e; a frame,

E; open at its upper end to permit the screw to play therethroughflexible supports, D, adapted to support the frame; E and hold the screwin a plane outside the arc of travel of JESSE BUTTON.

Witnesses:

GEO. F. WENTZ, HARRY TAGGART;

